From 69d04ca999499bccb6ca849fa2bfc5e6448f7233 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Fri, 23 Sep 2022 12:34:41 +0300 Subject: [PATCH] mtd: spi-nor: core: Ignore -ENOTSUPP in spi_nor_init() The Intel SPI-NOR controller does not support the 4-byte address opcode so ->set_4byte_addr_mode() ends up returning -ENOTSUPP and the SPI flash chip probe fail like this: [ 12.291082] spi-nor: probe of spi0.0 failed with error -524 Whereas previously before commit 08412e72afba ("mtd: spi-nor: core: Return error code from set_4byte_addr_mode()") it worked just fine. Fix this by ignoring -ENOTSUPP in spi_nor_init(). Fixes: 08412e72afba ("mtd: spi-nor: core: Return error code from set_4byte_addr_mode()") Cc: stable@vger.kernel.org Reported-by: Hongyu Ning Signed-off-by: Mika Westerberg Reviewed-by: Michael Walle Acked-by: Tudor Ambarus Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220923093441.3178-1-mika.westerberg@linux.intel.com --- drivers/mtd/spi-nor/core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index f2c64006f8d7..bee8fc4c9f07 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2724,7 +2724,9 @@ static int spi_nor_init(struct spi_nor *nor) */ WARN_ONCE(nor->flags & SNOR_F_BROKEN_RESET, "enabling reset hack; may not recover from unexpected reboots\n"); - return nor->params->set_4byte_addr_mode(nor, true); + err = nor->params->set_4byte_addr_mode(nor, true); + if (err && err != -ENOTSUPP) + return err; } return 0;